TCP client and Server at the same time ESP8266 Non OS SDK 2.2.1

[gailu]

Hi Experts,

We are long time user of esp8266 and running thousands of live devices in home automation category on this chip. However a small limitation is holding us to develop some more interesting and innovative products.

Requirement: We have a requirement to run both TCP client (connected to our cloud server) and TCP server (on which some TCP clients can connect to ESP) at the same time.

Limitation: While we do not get any error when setting up TCP client and TCP Server at same time however we receive data only on connected client. Other TCP clients can not connect to TCP server. If do not connect TCP client from ESP to cloud server, TCP server on ESP very well accepts TCP client connections.

TCP client + UDP server also works perfectly.

Is there any work around to this limitation of TCP client and TCP server running on ESP8266 at the same time?

[Removing this limitation will certainly help to increase footprint of esp8266. With this limitation we are getting forced to look for alternatives]

[gailu]

One to explain what the limitation is and is it something that we can fix?